<template>
    <div class="login-page">
        <canvas id="login-background"/>
        <div class="login-container">
            <div class="title">
                用户注册
                <set-animation :value="registerPageBackgroundAnimation" class="set-animation" @select="setAnimation"/>
            </div>
            <el-form ref="form" :model="form" :rules="rules" label-position="left">
                <el-form-item prop="username">
                <span class="svg-container">
                    <svg-icon icon="user"/>
                </span>
                    <el-input ref="username" v-model="form.username" :maxlength="20" placeholder="请输入用户名"/>
                </el-form-item>
                <el-form-item prop="pwd">
                    <el-tooltip v-model="capsTooltip" :tabindex="-1" content="大写锁定已打开" manual placement="left">
                    <span class="svg-container">
                        <svg-icon icon="password"/>
                    </span>
                    </el-tooltip>
                    <el-input v-model="form.pwd" placeholder="请输入密码" type="password" :maxlength="20"/>
                </el-form-item>
                <el-form-item prop="repwd">
                <span class="svg-container">
                    <svg-icon icon="password"/>
                </span>
                    <el-input
                            v-model="form.repwd"
                            placeholder="请确认密码"
                            type="password"
                            :maxlength="20"
                            @keyup.enter.native="register"
                    />
                </el-form-item>
                <el-button :loading="loading" style="width: 100%" type="primary" @click="register">注 册</el-button>
                <div class="flex" style="margin-top: 20px">
                    <p/>
                    <el-button type="text" @click="!loading&&$router.push('/login')">已有账户登陆</el-button>
                </div>
            </el-form>
        </div>
    </div>
</template>

<script>
    import md5 from "js-md5"
    import {register} from "@/api/account"
    import {checkName} from "@/api/system/user"
    import {elSuccess} from "@/utils/message"
    import {isEmpty} from "@/utils"
    import SetAnimation from "./components/SetAnimation"

    export default {
        name: "register",
        components: {SetAnimation},
        data() {
            const validateName = (r, v, c) => {
                checkName(this.form.username)
                    .then(({msg}) => msg ? c(msg) : c())
                    .catch(e => c(e))
            }
            const validateRepwd = (r, v, c) => {
                return v !== this.form.pwd ? c('两次密码输入不一致') : c()
            }

            return {
                form: {
                    username: '',
                    pwd: '',
                    repwd: ''
                },
                rules: {
                    username: [
                        {required: true, message: '请输入用户名', trigger: 'change'},
                        {validator: validateName, trigger: 'change'}
                    ],
                    pwd: [
                        {required: true, message: '请输入密码', trigger: 'change'},
                        {min: 6, max: 32, message: '请输入6-32位的密码', trigger: 'change'}
                    ],
                    repwd: [
                        {required: true, message: '请确认密码', trigger: 'change'},
                        {validator: validateRepwd, trigger: 'change'}
                    ],
                },
                capsTooltip: false,
                loading: false,
                animation: null
            }
        },
        computed: {
            registerPageBackgroundAnimation() {
                return this.$store.state.app.registerPageBackgroundAnimation
            }
        },
        methods: {
            register() {
                if (this.loading) return
                this.$refs.form.validate(valid => {
                    if (!valid) return
                    this.loading = true
                    register({username: this.form.username, password: md5(this.form.pwd)})
                        .then(() => {
                            elSuccess('注册成功')
                            this.$router.push('/login')
                        })
                        .catch(() => this.loading = false)
                })
            },
            capsLockTip({keyCode}) {
                if (keyCode === 20) this.capsTooltip = !this.capsTooltip
            },
            addEvent() {
                document.addEventListener('keyup', this.capsLockTip)
            },
            removeEvent() {
                document.removeEventListener('keyup', this.addCapsLockEvent)
            },
            clearAnimation() {
                if (this.animation) {
                    this.animation.stop()
                    this.animation = null
                }
            },
            setAnimation(value) {
                this.clearAnimation()
                this.$store.commit('app/registerPageBackgroundAnimation', value)
                if (isEmpty(value)) return
                import(`@/plugin/canvasAnimation/${value}`)
                    .then(_ => this.animation = new _.default(document.getElementById('login-background')))
            }
        },
        mounted() {
            this.setAnimation(this.registerPageBackgroundAnimation)
            this.addEvent()
            this.$nextTick(() => this.$refs.username.focus())
        },
        beforeDestroy() {
            this.$message.closeAll()
            this.removeEvent()
            this.clearAnimation()
        }
    }
</script>

<style lang="scss">
    @import "~@/assets/styles/login";
</style>
